[cān jiā]
（加入） join; attend; take part in; participate in; go in for; partake in [of] sth. with sb.; have hand in; enter into
participate in the discussion
參加討論
attend a meeting
參加會議
join the Party
參加黨
take an active part in recreational activities
積極參加文娛活動
Most students in our class go in for scientific activities.
我們班上大多數學生參加各項科學活動。
（提出意見） give (advice, suggestion, etc.)
Come and give us your view on the matter, won't you?
這件事你也來參加點意見吧。